This is my second Cavalier. My first was a 2000 Z24. Had a little problem and I Trade it in asking the dealer to replace it with another Z24 and they brought this 2002 with Ecotec to me. Reading about the doubts exposed about the Z's I decided to ask directly to GM. They answer me corroboring this car was built as a 2002 Cavalier Z24 Coupe. Text in the email they sent to me reads as follows: "The vehicle identification number you supplied indicates that your vehicle is a 2002 Cavalier Z24 Coupe." Of course no matter it is I like both.